Shuttle-changing motion for looms.



No. 567,767. Patented Feb. l2, 890i.

B." CROSSLEY. SHUTTLE CHANGING MOTION FDR LUOMS.

(Applicatioix filed June 13, 1899.)-

2 Sheets-Sheet l.

Inventor Witnesses B. Groslay Patented Feb. l2, l90l.. B. CRUSSLEY. SHUTTLE CHANGINQHOTION FOR LUOHs.-.

(Application flied m. 18, 1699.)

2 Shots-859st 2.

(No Model.)

V for replacing the shuttle.

UNiTE TATES FFICE.

BERNARD CROSSLEY, OF BURNLE E.\*Gl,.\. "'l).

SHUTTLE-CHANGI G MOTION FOR LOOlTz'l'Q SPECIFICATION forming part of Letters Patent No. 667,767, dated February 12, 1901v Application filed June 13, 1899. Serial No. 720,343. \No mode To all whom, it may concern:

Be it known that I, BERNARD ORossLEY, a subject of the Queen of Great Britain, residing at Burnley, in the county of Lancaster, England, have invented certain new and useful Improvements in Shuttle-Changing Hotions for Looms, (for which application for patent was filed in Great Britain November 14, 1898, No. 23,925,) of which the following is a specification.

This invention relates to shuttle-changing motions for looms for weaving textile fabrics, and has for its object the automatic removal of the shuttle in the shuttle-box of the loom when the weft is broken or run out and its replacement by another shuttle while the loom is in motion without interrupting the progress of the Work.

The invention consists in the improved mechanical arrangement hereinafter set forth, and illustrated by the several sheets of drawings hereunto attached, and to which reference will be mace.

In the drawin s,Figure 1 represents a front elevation of a loom to which my im proved arrangement is applied; Fig. 2, a section of the shuttle-box on an enlarged scale; Fig. 3, a plan of the under side of the shuttle-box, also on an enlarged scale; Fig. 4, an elevation of the left hand end of the loom, showing the application of the improved arrangement; Fig. 5, a section of the latter on line a; at; Fig. 6, a plan showing the means for setting in motion my improved arrangement; and Fig. 7 a view, on an enlarged scale, of the shuttle-changing carrier.

In carrying my invention into practice I first make the shuttle-boxA with a longitudinally-divided bottom, consisting of two parts a a, normally lying together with projecting stops at their ends, so as to havea slot a be-- tween them. The upper surface of the bottom formed by the parts a. a is fiat; but the under side forms a groove with angular or inclined sides a a as illustrated in Figs. 2 and 3. These sides have also transverse slots (i a a a hereinafter referred to, which form clearance-spaces for certain parts employed Each of the parts a a is mounted and fixed upon two arms or a 0. a. These arms radiate from and are mounted in pairs, so as to be capable of swiveling upon two studs b b, carried by the slay B, and by a bracket 11 attached thereto. One pair of arms is provided wilh a spring a, which is fixed so as to keep the parts a a close together or in contact at their ends, leaving the slot a between, and in which the picker-foot slides.

Upon a shaft 0, carried by one (0) of the parallel bearings c 0 fixed to the side of the loom -fran1e C, are fixed two arms 0 c, and upon the parallel shaft 0 are fixed the two similar arms 0 0 These four arms, hereinafter termed lifting-arms, are ofequal length,

below and slightly behind a spare full shuttle which is held in position below the shuttlebox bottom CL a when the slay B is in its backward position. To the arm 0 is fixed a stud which carriesa bowl 0, which is clearly shown in Fig. 5. In connection with this howl there is mounted upon the slay B a catch lrflin such a position with respect to the bowl that when the lifting-arms are slightly moved forward in the way hereinafter described the bowl is brought into the path of qhe catch U, and when the slay moves forward the liftingarms'are moved forward on their fnlcrums by means of the bowl simultaneously with the slayand carry the lifter upward and forward, bringing the latter beneath the spare shuttle which lies under the divided bottom of the shuttle box and forcing the said shuttle through the shuttle-box bottom, and thereby displacing the previonsly-working shuttle. The width of the lifter less than the length of the shuttle, and the shuttle-box bottom is formed with the clearance-slots a a a a, hereinbefore referred to, for missing the projections n of the lifter, which retain the shuttle in position therein. The liftingarms are keptin their normal position by the spring 0 The spare shuttles are contained in a vertical hopper D and lie one above the other. The lower one rests upon two parallel bars (1 d, which are fixed in a horizontal plane and run from beneath the liopper'to beyond the under side of the shuttle-box when the slay is. in its backward position. Beneath these parallel bars (I d arearranged two'ot-her parallel bars d d, which form. guide-rods. Upon these guide-rods is placed the spare shuttle carrier E, which consists of two movable parts e e, forming jaws carried by the guide-rods cl d The part c has a horizontalmovement with respect .to the guide-rods d d and is held closed by a spring e. The part c is hinged upon a pin e and has-a spring a, which keeps it normally in the position shown in Fig. '7 and enables it upon contact with the shuttle P to pass beneath the shuttle and spring up upon the otherside. The spare-shuttle holder engages with the slotted end 6 of the bell -crauk lever e which lever is fulcrumed upon a' stud or shaft (2 and is held in its normal position, as shown in Fig. 4, by the spring '2 The motion given to the spareshuttle carrier through the levere is imparted to the latter from one of the shafts c of the lifting-arms by means of the arm '6 fixed to the said shaft; The end of the arm 6 is connected to the arm e of the bellcrank lever e by means of the tensional con nection e, formed by a chain or cord. This connection is somewhat slack when the parts are in their position of rest, as shown, to allow the shuttle-lifte'rto ipoye upward and lift the shuttle out of the jaws of the shuttle-car,- rier before any positive forward motion is imparted to the carrier, which immediately afterward moves forward rapidly to seize another spare shuttle from the hopper.

The shuttle-changing motion is brought into action during the process of weaving by the breakage or running out of the weft. This causes the weft-fork slide f or its equivalent to be carried forward in the usual way, which forward movement is made use of to lift the lifting-arms aforesaid and bring the bowl 0 into the path of the catch b. To this end a chain f or its equivalent is connected at one end to the slide f, passes over the groove-pulleys ff, and is connected at its other end to the lifting-arm c. When the bowl c is thus brought into the path of the catch 71 the forward movement of the slay carries the lifting-arm's forward and causes the lifter c to liftthe spare shuttle out of-the jaws cc and push it against the two inclined surfaces of the parts a a, forming the shuttle-box bottom, and press them apart until the shuttle has passed between them and isabove them, when the spring a, pulls the parts (.1, a together again. used shuttle is lifted by the newly-inserted shuttle and ejected when the slay beats up.

The previously-' some? the chain e" pullsthe bell-crank lever e and 1 shuttle connected to it forward rapidly till the jaw e has passed the bottom shuttle in the hopper and jumped up again. During the backward motion of the slay the spring e pulls the lever e and jaws e'e back 'and' brings the spare shuttle over the lifter ready for the-next change. .The spring e is of such j by the insertion of the new shuttle, a receiver G is provided. The previously-used shuttle after being displaced by the new one is, in consequence of the momentum obtained during the beating up ofv the slay, jerked forward and is received by a box g, having a hood y and transverse rollers g? 9 the 'former of which is set higher than the latter, so as to give the shuttle sufiicient inclination to insure its sliding out sidewise to the loom and falling into any receptacle provided.-

I claim- 1. In a loom for weaving a shuttle-box on the loom-slay having a bottom formed of two movable parts drawn by spring-pressure toward each other against steps so as to leave between them a groove for the picker-foot and formed with inclined surfaces below said groove substantially as and for the purpose set forth.

2. The combination with a loom for weaving having a slay with a shuttle-boa bottom formed of two movable parts drawn toward each other by a spring against stops and formed with inclined surfaces on their opposite sides, of a shuttle-carrier placed below said surfaces and mechanism for lifting the shuttle out of the carrier on the failure of the weft so as to force the shuttle against said surfaces and open the shuttle-'boxbottom for the passage of the shuttle into the box. The combination with a loom for weaving having a slay with a shuttle-box bottom formed of two movable parts having diverging inclined surfaces on their opposite sides lifter moves upward relatively to the shuttle box and carrier and a spare shuttle, held in the carrier, is pushed upward, opens the shuttle-box bottom and passes into the box.

4. The combination with a loom for weaving of a reserve-shuttle hopper arranged on the breast-beam and havingan open bottom,

slide-bars supporting the shuttles, a shuttle' carrienhaving one sliding back jaw and one hinged front jaw held in position by springs, a lever imparting a forward and backward motion to the shuttle-carrier on the failure of the weft so that in the forward movement the hinged jaw passes underthe bottom shuttle in the hopper to the front of the same and grips it and during the backward movement carries the shuttle underneath the shuttlebox bottom in its back position. v

5. The combination with a loom for weaving having a slay with a shuttle-box bottom formed of two movable parts having diverging inclined surfaces on their opposite sides and supported on levers drawn together by a spring, of a reserve-shuttle hopper arranged on the breast-beam and having an open bottom, slide-bars supporting the shuttles, a

shuttle-carrier having one sliding back jaw and one hinged front jaw held in position by springs, a lever actuating the shuttle-carrier, a shu ttle-lifter formedtof bars carried by parallel arms shorter than and fulcrumed in advance of the slay-swords, a chain connecting one of said parallel arms to the weft-fork slide in such a manner that the arm is pulled forwardwith the weft-fork slide on the failure of the weft and its upper end raised thereby, a bowl 0, carried by one of said arms, a projectioh on the slay-sword arranged for em countering said bowl when raised as aforesaid,

so that the arms and shuttle-lifter are carried forward with the slay, a lever fixed on the shaft of said one of the arms and connected at its other end by a chain to the lever actuating the shuttle-carrier so as to carry it forward simultaneously with the slay underneath the hopper and a spring for returning said lever and carrier to its backward position underneath the shuttle-box on the slay when in its back position.

6. The combination with a loom for Weaving, of a shuttle-box, formed in sections, springs, holding the sections together, said sections being adapted to be pushed apart by a shuttle lifted against them," and means for lifting the said shuttle.

7. In a loom, the combination of a track, a hopper located above the same and adapted to contain shuttles, the lower one of which rests upon said track, a carrier having jaws extending above the track, one of the jaws being adapted to be turned to a point below the track by striking against the lowest shuttle in the hopper, and meansfor moving the carrier for the purpose set forth.

8.1 In a loom, the combination of ashuttlebox on the loom-slay, a hopper for other shuttles, a track passing-from under the hopper to under the shuttle-box, jaws adapted to pick shuttles-one at a time from said hopper,

mechanism for moving said jaws to said box,

and means controlled by the weft-fork for lifting said shuttle into said box.

In testimony whereof I have hereunto set my hand in the presence of two witnesses.

BERNARD CROSSLEY.

Witnesses:

JOHN STEPHENSON, CARL BOLLE. 

